Looping in R Ankan Basu / Learning from Example codes from coursera! Wednesday, August 13, 2014 VARIOUS LOOPING TECHNIQUES in R with EXAMPLES In this text, we are going to over some of the most extraordinary functions to help us loop in R. Mastering…
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  Dates and Times in R Ankan Basu / Learning from Example codes from coursera! Tuesday, August 12, 2014 Dealing with dates Dates are represented by the Date class Times are represented by the POSIXct or the POSIXlt class Dates and times…
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  Data Table 1. You can apply all function that you can apply to data frames 2. data.table is written in C (I am learning that language too!) 3. Much faster. load from library In this exercise, first lets create a…
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#reading from JSON data in R library(jsonlite) #JSON to my user account json_data=fromJSON(“https://api.github.com/users/hydrogeologist/repos”) names(json_data) names(json_data$owner) json_data$owner$login #Writing data frames into JSON My_JSON=toJSON(iris, pretty=T) cat(My_JSON) iris2=fromJSON(My_JSON) head(iris2)

# Creating directory using R command if(!file.exists(“testfolder”)){ dir.create(“testfolder”) }

In this example, we have created a vector X and later changed all values of vector x>10 = 4.   > x <- c(17, 14, 4, 5, 13, 12, 10) > x[x>10] [1] 17 14 13 12 > x [1]…
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